Supercharged Fiero GT

3800sc 3.8L L67 Engine

1998 Grand Prix GTP 3.8L Supercharged Engine

3800sc Series II

Upgraded to an Eaton M90 Gen V supercharger

ZZP Stage 2.5 Intercooler

3.4” Supercharger Pulley

Cadillac Northstar Throttle-body Swap and ZZP Adapter

ZZP (CompCam) XP high performance camshaft

Modified heads with 136lb valve springs, ARP Studs

LS7 Hydraulic Lifter

ZZP Stainless Steel Valves

Jet-Hot ceramic coated ZZP PowerLogs (front and rear)



The Donor Car -1998 GTP

The engine came from a one owner 1998 Grand Prix GTP with a 3.8L 3800sc Series II supercharged engine. The car was purchased in Canada and the gauges, odometer, and air conditioning controls were all in metric (kilometers and Celsius). The original owner kept amazing maintenance records in the owners manual that listed every oil change, tire rotation, parts replacement, and every other detail.


Engine Striped to the Block

A partial engine rebuild was completed removing everything except the pistons, rods, crank, and bearings.

Triple Roller Timing Chain Conversion

New High Efficiency Water Pump

Oil Pump Housing Rebuild

Eaton M90 Gen V Supercharger Upgrade

Eaton M90 Gen V Supercharger Smoothed

New Supercharger Rotors

Painted with Eastwood's 2k Urethane Paint


Supercharger and Valve Covers Repainted

Eaton M90 Gen V Supercharger Rebuilt